mac系统下，在eclipse里配置maven的国内镜像

1. 点击前往档案夹

输入/users/<user name>/.m2

回车

进入到该目录下，创建settings.xml，默认是没有该文件的，eclipse的maven工具安装时不会新建该文件

而该文件上方的repository文件夹是用来存放通过maven下载的插件的，如下图

2. 打开eclipse偏好设置

进入maven-user settings，点击user setting的browse按钮

选择新建的settings.xml文件

user setting右边就会出现open file按钮

点击open file按钮就会在eclipse里面打开settings.xml文件

3. 在打开的文件里输入

<settings xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
	<mirrors>
		<!-- mirror | Specifies a repository mirror site to use instead of a given 
			repository. The repository that | this mirror serves has an ID that matches 
			the mirrorOf element of this mirror. IDs are used | for inheritance and direct 
			lookup purposes, and must be unique across the set of mirrors. | -->
		<mirror>
			<id>nexus-aliyun</id>
			<mirrorOf>central</mirrorOf>
			<name>Nexus aliyun</name>
			<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
		</mirror>
		<mirror>
			<id>nexus-aliyun-thirdparty</id>
			<mirrorOf>thirdparty</mirrorOf>
			<name>Nexus aliyun thirdparty</name>
			<url>http://maven.aliyun.com/nexus/content/repositories/thirdparty/</url>
		</mirror>
	</mirrors>

	<profiles>
		<profile>
			<id>default</id>
			<repositories>
				<repository>
					<id>nexus</id>
					<name>local private nexus</name>
					<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
					<releases>
						<enabled>true</enabled>
					</releases>
					<snapshots>
						<enabled>false</enabled>
					</snapshots>
				</repository>
			</repositories>
			<pluginRepositories>
				<pluginRepository>
					<id>nexus</id>
					<name>local private nexus</name>
					<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
					<releases>
						<enabled>true</enabled>
					</releases>
					<snapshots>
						<enabled>false</enabled>
					</snapshots>
				</pluginRepository>
			</pluginRepositories>
		</profile>
	</profiles>
</settings>

参考：

https://yq.aliyun.com/articles/6861

把参考文章里的链接换成aliyun的，开源中国的用不了了

用文章里的写法不会报无法读取settings.xml错误

而且经过试验，下载好插件后，pom.xml也不会报错，下载速度也比较快